Search results for "Surface Processes"
showing 10 items of 1294 documents
Tramways Revisited: An analysis of the role of tramways in urban transportation during the twentieth century
2007
The structure and evolution of tramway and metro networks are studied in this article using two models involving addition/accretion and expansion/diffusion modes of growth, respectively. Data for t...
Characteristics and definition and characterization of new Valencian urban areas
2014
La expansión urbanística, junto con la generalización de los procesos de descentralización residencial y económica, ha conducido a un nuevo modelo de ciudad dispersa caracterizado por la dificultad de establecer sus límites precisos. Utilizando un índice de densidad de ejes viarios procedente de una fuente comercial, y por tanto fácilmente actualizable, se ha delimitado el fenómeno urbano en la Comunidad Valenciana. Se discute la utilidad de la metodología y su capacidad para captar el hecho urbano a partir del contraste con la cartografía de usos del suelo de Corine. Urban expansion, along with the generalization of the processes of residential and economic decentralization has led to a ne…
Jané, Òscar i Solé, Queralt (eds.) (2011). Observar les fronteres, veure el món
2013
Jané, Òscar i Solé, Queralt (eds.) (2011). Observar les fronteres, veure el món. València: Afers, 350 p., ISBN: 978-84-92542-50-5
A methodological comparison of head-cut based gully erosion susceptibility models
2020
Abstract A GIS-based hybrid approach for gully erosion susceptibility mapping (GESM) in the Biarjamand watershed in Iran is presented. A database comprised of 15 geo-environmental factors (GEFs) was compiled and used to predict the spatial distribution of 358 gully locations; 70% (251) of which were extracted for training and 30% (107) for validation. A Dempster-Shafer (DS) statistical model was employed to map susceptibility. Next, the results of four kernels (binary logistic, reg logistic, binary logitraw, and reg linear) of a boosted regression tree (BRT) model were combined to increase the efficiency and accuracy of the mapping. Area under receiver operating characteristics (AUROC), tru…
Regina Schlüter – an entire life devoted to tourism research
2017
Now that tourism has transformed into a growing commercial trade, which revitalizes local economies and poverty relief, social scientists were captivated by tourism as a promising theme for their i...
Dynamiques géomorphologiques et typologie géoarcheologique des ports antiques en contextes lagunaires
2015
En domaine littoral, dans un contexte de stabilisation plurimillenaire de la montee du niveau de la mer, une question qui se pose est celle de l’impact des conditions environnementales sur les choix d’implantation des communautes humaines qui s’installent autour des lagunes. L’historiographie a developpe des modeles plus ou moins deterministes mais survivent-ils a la confrontation avec les donnees environnementales recemment acquises? Quels ont ete les effets de ces occupations sur l’evolution du littoral et reciproquement, comment les societes anciennes ont utilise, contourne, surmonte ou pas les potentialites et contraintes environnementales specifiques liees a l’occupation des milieux la…
Miami, tourists, colonists and adventurers in the last boundary of Latin America
2012
The End of Magdalenian in Andalusia: Cueva de Nerja (Spain)
2012
The Solutrean-Magdalenian Transition: a view from the west
2012
How do the 1982/83 and 1997/98 El Niños rank in a geological record from Peru?
2007
Two very strong El Nino events during the years 1982/83 and 1997/98 caused dramatic economical and social damages worldwide. However, it is quite uncertain how these events rank in a long-term perspective and how frequent events of similar magnitude were in the past. Very-high-resolution proxy data for flood events in the El Nino key region of Peru are presented. Strong flood events in the hyper-arid northern and northern central Peru coastal desert occur during El Nino events. The flood data are derived from a laminated marine sediment core. The proxy data reveal that both modern events were recorded as the strongest sediment discharges in the 106KL flood record over the last millennium. S…